264 Panama Shells. CARDIID-fi. 



We procured 147 specimens, many of which were obtained 

 from the natives. The animal is used by them for food. 



426. Area . Sp. indet. a. 



Habitat. — Panama ; C. B. A. I 



2 specimens were found. They are too young for descrip- 

 tion, The species is remarkable for the prominence and sharp- 

 ness of one of its two umbonial angles. 



Family— CARDim^. 

 427. Cardita affinis. 



Synonymy. 



Cardita affinis Sowb. in Proo. Zool. Soc. Loud. p. 195. Dec. 1832, 



Mull. Syn. Test. Viv. p. 211. May 1836. 



Reeve Conch. Icon. pi. 1. f. 6. June 1843. 



Hanley Descr. Catal. p. 149. 1845 ? 



morfu^osa (?) Val. Voy. Venus Moll. pi. 22. f. 2. 1846, 



Valenciennes quotes Lamarck for the name which he gives to 

 this species, which must therefore be an error for noduhsa. 

 But the Lamarckian shell probably belongs to a different species, 

 for it is said to be Australian, The name noduhsa is yet 

 farther involved ia errors, by its reappearance in Reeve's 

 Iconica for a very different species. 



Station. — Sandy mud, at a depth of from 6 to 12 fathoms ; 

 Cuming I Sowerby. 



Our specimens were found in stones and rocks at and below 

 half tide level. It is a boring species. 



HaUtat.—Q&j of Montija and Gulf of Nicoya; Cuming I 

 Sowerby : also Miiller. 

 Central America ; Hanley. 

 Mazatlan ; Melchers I Menke. 

 "West Columbia ; Jay. 



